ADATA is touting its new HE720 as the world's thinnest external hard drive. The company has managed to squeeze 500 GB of storage and a speedy USB 3.0 connection into a brushed metal enclosure measuring in at a mere 8.9 millimeters thick—or just over a third of an inch.

Just a few days ago Toshiba claimed its new Canvio external drive—boasting similar specs—was the world's thinnest. But it measures in at a portly nine millimeters meaning ADATA's got it beat by a hair—literally. So if you've already transitioned to a thin ultrabook, this will easily squeeze alongside it in your bag. The new HE720 of course includes the requisite mediocre backup software that comes standard on most external drives these days, and is available right now with a matching svelte price tag of just $90. [ADATA via SlashGear]